BS EN ISO 3146-2000 塑料.用毛细管和偏振显微镜法测定半晶状聚合物的熔化性能(熔化温度或熔化区域)

作者:标准资料网 时间:2024-05-11 01:34:30  浏览:8158   来源:标准资料网

【英文标准名称】:Plastics-Determinationofmeltingbehaviour(meltingtemperatureormeltingrange)ofsemi-crystallinepolymersbycapillarytubeandpolarizing-microscopemethods
【原文标准名称】:塑料.用毛细管和偏振显微镜法测定半晶状聚合物的熔化性能(熔化温度或熔化区域)
【标准号】:BSENISO3146-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-09-15
【实施或试行日期】:2000-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:加热试验;熔点;偏振;试验设备;塑料和橡胶技术;高聚物;温度测量;试样;晶体;塑料;热试验;外观检查(试验);试验条件
【英文主题词】:Capillarytubes;Crystalline;Definition;Definitions;Determination;Measurement;Measuringinstruments;Measuringtechniques;Melttemperature;Meltingbehaviour;Meltingpoint;Meltingrange;Microscopes;Photoelasticmethods;Plastics;Polarization(wavephysics);Polymers;Temperaturemeasurement;Temperature-measuringinstruments;Testequipment;Testing;Thermalanalysis
【摘要】:ThisInternationalStandardspecifiestwomethodsforevaluatingthemeltingbehaviourofsemi-crystallinepolymers.Meltingtemperaturesdeterminedbythedifferentmethodsusuallydifferbyseveralkelvinsforthereasonsexplainedintheintroduction.MethodA:CapillarytubeThismethodisbasedonthechangesinshapeofthepolymer.Itisapplicabletoallsemi-crystallinepolymersandtheircompounds.NOTE1MethodAmayalsobeusefulfortheevaluationofthesofteningofnon-crystallinesolids.MethodB:PolarizingmicroscopeThismethodisbasedonchangesintheopticalpropertiesofthepolymer.Itisapplicabletopolymerscontainingabirefringentcrystallinephase.Itmaynotbesuitableforplasticscompoundscontainingpigmentsand/orotheraddi-tiveswhichcouldinterferewiththebirefringenceofthepolymericcrystallinezone.NOTE2Anothermethodapplicabletosemi-crystallinepolymersisdescribedinISO11357-3:1999,Plastics—Differentialscan-ningcalorimetry(DSC)—Part3:Determinationoftemperatureandenthalpyofmeltingandcrystallization.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:20P.;A4
【正文语种】:英语